21200711

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{577}}^1$

素因数の和:794

約数の個数: 16

約数和(自身を含む): 25247040

約数和(自身を除く): 4046329

約数列:

[1, 7, 29, 181, 203, 577, 1267, 4039, 5249, 16733, 36743, 104437, 117131, 731059, 3028673, 21200711]

約数ペア:

[(1, 21200711), (7, 3028673), (29, 731059), (181, 117131), (203, 104437), (577, 36743), (1267, 16733), (4039, 5249)]